Efficiency and productivity growth in Chinese universities during the post-reform period

The social science research performance of Chinese universities is examined using panel data. The universities are found to be very inefficient in general, with not much difference between regions. By far the largest single cause of universities′ overall technical efficiency is pure technical efficiency, along with a considerable amount of scale inefficiency and a modest amount of congestion. No obvious regional differences in the universities′ productivity growth are apparent between 1998 and 2002. Decomposition of the Malmquist productivity index indicates that although there has been technological progress over the years, poor scale efficiency and technical efficiency have resulted in deterioration in the universities′ average productivity. There are signs of increasing congestion during the period studied.     

精确重心算法在物流节点选址中的应用

首先介绍了国内外解决设施选址和布局问题的常用研究方法,其次研究了物流节点选址问题重心算法,并重点对精确重心算法进行了深入研究,最后利用计算机仿真技术实现了单一物流节点选址的精确重心仿真求解。     

高分辨率铁尾矿遥感光谱特征分析与信息提取

遥感监测尾矿是矿山调查和监管的科学方法,也是地理国情监测的基础内容。研究了铁尾矿遥感影像解译标志和光谱特征,建立铁尾矿遥感信息的提取技术流程。利用尾矿光谱特征与纹理结构的特点,构建了铁尾矿遥感增强处理的RTI数学模型。并以唐山地区的铁尾矿及固体废弃物作为研究区,分析了模型的影响因子和有效性。为尾矿资源的自动监测和目标提取提供了新的处理手段。     

北京市朝阳区绿化隔离地区绿地变化分析

通过分析北京市朝阳区绿化隔离区内绿地变化情况,揭示朝阳区绿色空间的建设历程,为下一轮规划提出建议。依据北京市绿色空间规划情况,利用2001年、2008年及2010年朝阳区土地利用现状数据,应用GIS软件的叠加功能分析绿地变化情况。通过构建的转移矩阵及实地调研成果分析绿化隔离带的形成过程,以及被蚕食及破坏的情况。研究表明,朝阳区绿色隔离区内的绿地在持续减少,各类建设用地对绿地的蚕食占用是主要原因,虽然同期也有一定数量的建设用地腾退为绿地,但面积较小。建议结合区域特点选择恰当的绿地建设类型,以城市公园、防护林、农田为主要绿地形式,以建设较好的规模绿地为保护重点。     

WTO框架下中国服务贸易发展的初步构想

加入WTO五年，中国服务贸易迅速发展，但与世界服务贸易发展相比，仍存在很大差距。本文在简要介绍我国服务贸易发展现状的基础上，对我国服务贸易的竞争力进行分析，揭示了我国服务贸易发展过程中存在的问题，并构想解决的对策。     

Default Premiums in Commodity Markets: Theory and Evidence

We model the effect of nonperformance risk on forward and futures pricing and look for evidence of nonperformance risk in precious metals futures prices from the “Hunt Brothers”episode. Changes in default premiums are measured and related to the sequence of events in the metals markets during this period. Results suggest first that ex ante costs of nonperformance can be a significant, priced factor in commodity markets and second that the arrival of new information is often associated with changes in these costs. The evidence has implications for both theoretical and empirical research on commodity markets.     

我国房产税试点效果评析与房产税作用探究

目前我国房产税在持有环节的征收处于试点阶段，其推进和改革仍有很多争议。文章在总结国际上发达国家房产税征收及我国房产持有环节税收试点情况的基础上，从三方面分别探讨了在我国房价高启的背景下开征持有环节的房地产税的作用。但是这些作用还不能全面准确地涵盖我国应征收房地产税的所有层面，由此提出了适合我国国情的差别化房地产税收政策的构建思路。     

对我国开展矿产资源综合区划相关问题的思考

开展矿产资源综合区划是落实国家战略、保障我国资源安全的必然要求,同时也是矿产资源区划研究的重要趋势。在阐述开展矿产资源综合区划必要性和可行性的基础上,探讨了对矿产资源综合区划概念、内涵、特点、区划体系,以及划分方法与指标体系设计等方面的思考认识,以期为我国矿产资源综合区划的实证研究提供参考。     

Trade Union Influence on Human Resource Management Practices

This paper examines the influence of unions on 37 human resource management practices, ranging from hiring policies to promotion practices. The logistic regression results show that unionization is positively associated with a more formal approach to human resource management. There is, however, a shift from performance-based payment systems and performance appraisal (P.A.) functions in unionized settings. The results also indicate that union firms are more selective of new hires by adopting a formal probationary period for new employees. Last, the estimates suggest that the impact of unions on training programs varies with the nature of the programs.